Lawn mower



June 30, '1931- c. R. STEINMETZ ET AL 2 LAWN MOWER Filed Nov. 20, 1928 2 Sheets-Sheet l gram/141101,; 6247168 .75. lZzhyzefz, ffarold I; M fia/me;

JuneBO, 1931.

c. RiSTEINMETZ ET AL ,8 2,272

LAWN MOWER 2 Sheets-Sheet 2 Filed No v. 20, 1928 'Paitente'dg-Ii ifie rf i I or OKLAHO A cum-inn}:- i zjotn. News or: 1 If)? mower wherein the motor has a rotating casi ing forming part of the cutting reel and di- 7 V rectly carrying the bladesof the latter to andthe motor.

' form, combination and arrangement ofparts a showing an end portion of the motor 'shaftfl rearward extensions 7 between; which the 7 the side frame plates 5,-and provided at its upper rear end with a cross bar 12'whose ends 'ofthat type whereinthe cutting reel Ior-cylmanufacture, andextremely efficient inopert 10 I a t v of Figure 1;

wheels 13 are suitably j ou rna led 'onthe outer sides of the frame plates 5, as-at 14, and sup- L ported by the extensions? is. an adjustable CHARLES R, srEINME'ra V OKMUL EE, OKLAHOMAQ r Appli'cati on'filed novemberza' iez 361320 93,. This invention relates ,to lawn mowers,

and'has'm'ore particular reference to mowers wellfknown mann'ergw r 7 fIn tl-ie form-of the I inder is driven'by a motor instead ofbeing electricmotor is'mounted'between theizframe. operated by the ground wheels. v

The primary object of the present invention is to provide a mower which is'simple and compact in construction, inexpensive to carried by a casing 17 and a-stationary armaation. I a i o v A further object is to provide an improved cured to lugs 21 rigid with the motor casing V "As shown, theblades 16 are arranged avoidobjectionable gearing between the reel about the motor so that the motor is substan The resent] invention consistsin the novel; junction with the latter, forms a cutting reel' hereinafter more fully described, shown in giving a cut of corresponding width. In the accompanying drawings and. claimed. View of the" above, the 'motoris rigidly sup-f In the drawings: Figure 1 isa plan view, partly broken away, of a mower embodying the present invention. 7 Figure 2 is a enlarged fragmentary trans verse section taken substantially on line 2-2 tion bearings 22 are provided between the ends of the motor casing and-the shaft 18so as to take up wear and prevent play between the casing and the shaft, so that constant con;

Figure-3 is a longitudinal section on line 3-3 of Figure 2. a a r Figure 4 is a'section on line 44 of Fig- 15 is insured a 1 i V 7 ure 2; and i vCurrent may be supplied to the motor by Figure 5 is a fragmentary perspective view,

Referring more in detail to the-drawings, the present mower includes a suitable frame embodying a pair of side plates 5rrigidly connected by a transverse rod 6-and having operation of the motor being effected by ed by the hand gripping an end ofxthe cross usualgauge roller 8 is suitably mountedfor vertical adjustment, as at,9.. A handle 10 is also provided, having divergentarm'sll at. its lower end whose free ends are connected to may be wound; when not in use. In the form of the invention are shaped to form hand" grips. By this providedwith a bore or passage through means the mower maybe conveniently manuallyfpushed and" uide d.- Coaxial "ground motor. Theladjacent endofthe shaftl18 has a'passage as shown in Figure 2 through which part 23 into the motor-i .casing 17; A mower constructed as described will be ground knife-15 adapted'to cooperatewith plates 5, anclthis motor has a rotating fiefdf manipulation of the handle of a suitable nor- A mally open switch 25, which handle isactuat- F which is, extended the feed cable 24; of the thefspiralf-blades is see ing ureel l inalfj i i finvention shown, an

ture carried by an armatureshaft 18-whose v I endsareireduced as at '19-and 'securedin openings formed int-lieframe plates 5. The motorf, shaft isalso keyed as'at 20 to the plates5 for beingvpositively held against turning, and the blades 16 or the reel are preferablyse-o v 651 if g tially housed within the blades-andyin' conextending the run width: or the frame for I i j ported agairistvibratiori' within the, frame, and objectionable gearing betweenthe reel 7 and motor is avoided; Adjustable anti-frie tact of the blades 16 with the ground knife v so the use of an attachment cord 23 havingan attachmentplug 24 at onefend for'connection r t .7

with a suitablesourceof current: supply, the '7 bar12; .Hooks .26 may be provided on they" 7 J mower handle l0'about which the cord'23 v v es'f I shown, one of V a f the frame plates 5; is of special form, and 1 this plate has aninwardly projecting part 23 well balanced, will stand hard usage, and will eliminate loss of adjustment and Vibration to an extent suflicient to insure satisfactory operation.

Minor changes may be made without departing from the spirit and scope of the invention as claimed.

What we claim as new is:

A lawn mower comprising a frame, ground engaging wheels carried by the frame, a stationary shaft, an electric armature carried by said shaft, an electric field casing surrounding the armature and cutter blades carried by the field casing, side plates journaled in the wheels, reduced end portions on the shaft for detachably connecting with the side plates, threads on the ends of the shaft for receiving clamping nuts adapted to maintain the shaft and side plates in rigid relationship to each other.

In testimony whereof we aflix our signatures.

CHARLES R. STEINMETZ. HAROLD F. MoKINNEY. 

